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Collection and analysis of well data is important process, allowing a reconstruction of the penetrated rocks. Numerous charts and diagrams illustrate all sorts of geological information. Some of them are demonstrated and generalized by well sections from south-western part of the Central North Bulgaria. Logs together with well core and cuttings are the bases for construction of a general Mesozoic lithostratigraphy column. Besides the major lithotypes the source rocks, reservoirs and seals are also outlined. Select...

The need of real publication and distribution of the data from the cadastral systems more emphasized dictate adequate engagement of methodology and algorithms for registration of constrictive components which helps discretization of space phenomena and events. Within the turbulent ideas the cadastral systems which are functionally based on 2D treatment of property units do not have ability to accept and fulfill complex constructive segments and their contacts whit the close surroundings. This is only a part of the...

Authors consider a damage in a building excavation, which took place in June 2005 at the environs of Sofia. The slope of the excavation is protected by anchors and protective net but after the heavy rains during the whole month of June 2005 it begins to degrade. An emergency additional strengthening is made and the degradation is stopped. The paper considers the reasons for the damage and outlines the results of the investigations and laboratory tests made afterwards. The specific characteristics of the soil that ...

Due to limitations in the spatial and temporal coverage of air quality measurements, monitoring data normally are not sufficient as the sole basis for demonstrating the adequacy of emission limits for existing sources. Also, the impacts of new sources that do not yet exist can only be determined through modeling. Dispersion models are used in all the basic applications such as the determination of the effect of a pollutant source on environment, calculation of ground level concentrations and regulatory control of ...

The present work aims at presenting the main research topics of GPhI in the field of numerical air pollution modeling. The basic dynamic and pollution transport models, applied for the purpose are briefly described. Some study results are demonstrated, concerning air pollution modeling in local and regional scales.

This study was aimed to determine the levels of blast-induced vibrations at BayД±rk\"oy town situated in the boundary of BeЕџikd\"uz\"u and being said to be affected by the blasting generated at Korkuthan Quarry being located at the edge of Akhisar Brook in BeЕџikd\"uz\"u in Trabzon. Korkuthan Quarry has assured riprap materials for filling the sea and sea fortification for the construction of Espiye-\cCarЕџД±baЕџД± coastal highway (including Giresun coastal highway) at the scope of The Black Sea Coastal Way Rehab...

The environmental problem of natural occurring radioactive materials (NORM) is omnipresent on Earth, and their radioactivity may become concentrated as a result of human activities. Various industries produce concentrated radioactivity in their by-products: Mining originating industries such as the coal industries, petroleum extraction and processing and natural gas, mining enrichment waste, phosphate, etc. They have been well known and widely investigated. The EPA describes NORM wastes from the mining and process...

The Correspondence Analysis Method (CAM) is actually a Non-structural method that could be used to define the anomaly from the background. To apply this method, representative samples of a large area are necessary but knowing the exact location of each sample is not necessary. Base on this method, the litho-geochemical data would be mathematically process to extract the valuable factors needed to plot a two by two diagram. This method has been applied on available data in Enjerd skarn deposit. Five factors have be...

The use of numerical systems to evaluate the appropriateness of a mining method for a particular ore deposit has been in use for some time. These systems rely on ranking a finite number of geometrical, geological, and geomechanical parameters to arrive at a rating value for different mining methods. Nowadays application of fuzzy logic has been paid attention for selection of mining exploitation method. The mining method selection (MMS) system takes account of the uncertainty associated with boundary conditions of ...

Global Navigation Satellite Systems (GNSS) (predominantly GPS carrier phase-based positioning) are used today more and more in various areas of geodesy and surveying. In order to determine the position of a large number of points as quickly as possible, GPS RTK (Real Time Kinematic) surveying method is the most productive one because the coordinates are obtained in real time directly in the field and involve occupying points for a short period of time. Because point positions with high precision are immediately kn...